Unexpected error: Setting up Rachio 3 with Airport Extreme router

Thanks for the info on the newer iOS connectivity issue. I brought out my older iPad and Rachio hooked right up to my AirPort Extreme easily like it is suppose too. Also my newer iPhone with the latest iOS also automatically set-up afterthe [quote=“Stewart, post:2, topic:23473, full:true”]
Can you get the controller into the state where quadrant 2 is blinking yellow? See
https://support.rachio.com/hc/en-us/articles/360003815533-Light-Codes-Rachio-3-
If not, factory reset the controller and try again.

Once quadrant 2 is blinking yellow, go to your phone’s Wi-Fi settings (without running the app) and look for a network name starting with Rachio e.g. Rachio-1A2B3C. If you can see this network and have a Mac, Windows or Linux computer with Wi-Fi, use that to ‘provision’ the controller as described in this post:

If that fails, post details of where it went wrong. If it “succeeds” but the controller is still offline, post what you know about the connection e.g. does it show as a device in your router? Can you ping it?
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initial set-up on my old iPad. Excellent!
Thank You Rachio Tech for the information.